Titanplatte für Bipolarplatte mit Ausgezeichneter Elektrischer Oberflächenleitfähigkeit und Beständigkeit und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4756936

Anmeldetag

12. Dezember 2024

Veröffentlichung

19. Juni 2025

Rechtsraum

EP

Abstract

The present disclosure discloses a titanium sheet for a fuel cell separator having excellent surface conductivity and durability. The titanium sheet for a fuel cell separator, comprising: a base metal comprising, by weight percent (wt%), 0.001% to 0.09% of Si, 0.065% or less of Fe, and the balance of Ti and unavoidable impurities; and a surface oxide layer comprising, by weight percent (wt%), 0.20% or less of Si, 0.20% or less of O, and the balance of Ti and unavoidable impurities; wherein the surface oxide layer satisfies Formula (1) at a position where the oxygen (O) content is at its maximum within the surface oxide region, 0.05≤Si/Ti+O≤0.4 where Si, Ti, and 0 in Formula (1) represent the content (wt%) of each respective element at the position.

Anmelder

Firma

POSCO Co., Ltd

Land

🇰🇷 Südkorea